| Feature |
Description |
Additional Signal Support |
| A16 |
SA 16-bit I/0
address decode (I/0 Slave)/ generation (master) |
A0-A15 |
| A24 |
SA 24-bit
memory address decode (Memory Slave)/generation (master) |
A0-A24 |
| D8 |
SA 8-bit data
transfer, masters/slaves |
D0-D7 |
| D16 |
SA16-bit
transfer, masters/slaves |
D0-D15,MEM16*,BHE*,IO16* |
| EBURST |
EA Burst
transfer capability, masters/slaves |
SLBURST*,MSBURST* |
| EDMAA |
EA type A DMA
transfers supported, masters/slaves |
DMAIOW*,DMAIOR*,
DRQx,DAKx*,T-C |
| EDMAB |
EA type B DMA
transfers supported, masters/slaves |
DMAIOW*,DMAIOR*,
DRQx, DAKx*,T-C |
| EDMAC |
EA type C DMA
transfers supported, masters/slaves |
DMAIOW*,DMAIOR*,
DRQx, DAKx*,T-C, SLBURST*, MSBURST* |
| GAX |
EA
geographical address support masters/slaves |
AENx*
(masters) |
| I |
SA (STD-80)
interrupt generation (slaves)/ servicing (masters) on
INTRQ*, INTR1*,NMIRQ*, CNTRL* (INTRQ2*), or INTRQ3* |
INTRQ*,INTRQ1*,NMIRQ*[CNTRL*
(INTRQ2*)], INTRQ3* |
| ICA |
Cascadable
interrupt address support, masters/slaves |
A8-A10 during
INTA |
| IXP |
Slot-specific
interrupt servicing (Permanent Masters)/ generation
(slaves), positive edge-triggered |
IRQx |
| IXL |
Slot-specific
interrupt servicing (Permanent Masters)/ generation
(slaves), low-level asserted |
IRQx |
| MB |
Bus
arbitration via BUSRQ*/BUSAK* - SA Masters only |
BUSRQ*,BUSAK* |
| MD |
Bus
Arbitration via DREQx*/DAKx* - SA Masters only |
DREQx*, DAKx* |
| MX |
Bus
Arbitration via MREQx*/MAKx* (Permanent Master)/ request
(Temporary Slave) |
MREQx*,MAKx* |
| NOWS |
No wait-state
(NOWS*) support |
NOWS* |
| SDMA8 |
8-bit SA
frontplane DMA as specified in Chapter 2, masters/slaves |
-- |
| SDMA16 |
16-bit SA
frontplane DMA as specified in Chapter 2, masters/slaves |
-- |
| XA16 |
EA 16-bit
address decode, I/0 transfers |
A2-A15,
BE0*-BE3* as per Chapter 3 |
| XA32 |
Full 32-bit
EA address space driven, masters may pull XA24*-XA31*
passively high Full 32-bit EA address decoded by Memory
Slaves |
A2-A15,
XA16-XA23, XA24* XA31*, BE0*-BE3* |
| XD8 |
8-bit EA data
transfer, masters/slaves |
D0-D7 |
| XD16 |
16-bit EA
data transfer, masters/slaves |
D0-D15,
EX16*, BE0*-BE3* |
| XD32 |
32-bit EA
data transfer, masters/slaves |
D0-D31,
EX16*, EX32*, EX32* BE0* BE3* |
Short
Form Specs 
